#include <stdio.h>

int main(int argc,char argv[])
{
	int A[5];
	//1.当作用于sizeof()时
	printf("%ld\n",sizeof(A));//20
	
	//2.当不作用于sizeof()时
	printf("A = %p\n",A);
	printf("&A[0] = %p\n",&A[0]);
	
	printf("sizeo(A) = %ld\n",sizeof(A));//20
	printf("sizeo(&A[0]) = %ld\n",sizeof(&A[0]));//8
	
	return 0;
}